#!/usr/bin/env python 
#-*- coding:utf-8 -*-
def count_number(a):
    count = 0
    for i in a:
        if type(i) == int:
            count += 1
        else:
            pass
    print(('这个列表中一共有%s个数字')%(count))
count_number([1,2,3,454,45,4,'wqeq','eqweqwer'])
